Are there any archers? I am left-handed and want to play with others, so I bought a traditional anti-Song, and I also bought one.

Disturbance is a standard to describe the hardness of an arrow.

You need to make sure that the disturbance matches the bow. First of all, you must make sure that the archery posture is correct. If posture affects you, you don't say anything. In addition, the traditional bow itself has an initial included angle on the arrow, so the soft interference arrow is generally used.

Theoretically, your 40-pound bow is too soft for 700 interference arrows. If it is a left bow and a right arrow, then the tail of the arrow should be behind the impact point of the three groups of arrows in the 10 meter target (not the impact point of the arrow, but the inclined position and tail of the arrow). If the impact point is left or right, it is a problem of aiming. As long as the arrow is basically vertical at the target, the degree of interference is appropriate), so your 20-meter measurement is not allowed.

Because the use environment of the bow varies from person to person, you need to simply measure the interference. There is only one way: prepare multiple sets of arrows with different disturbances, shoot several times more, and finally find out the really suitable disturbance so that the arrows will not tilt left and right when inserted into the target. (A simple way to determine the disturbance of an arrow is to cut it short when the saw allows. If the disturbance is reduced by about 50 per short 1 inch, the arrow becomes harder. )

As for your saying that the tail of the arrow is tight, it depends on whether the tail of the arrow is closely engaged with the bowstring. Generally, after the tail of the arrow bites, the bow is downward. If the arrow does not fall under the action of gravity, it is appropriate to take the arrow without pulling the bowstring.

Generally speaking, as long as it is not the influence of the athlete's arrow tail, the influence of inaccurate shooting can be basically ignored, and the main biggest influence is posture.